Preparation
N-(9,10-dioxo-9,10-dihydroanthracene-1-yl)-1-aminoanthracene-9,10-dione imine nitration,, then use Sodium sulfide reduction, garnish with Benzoyl chloride acylation.
Properties and Applications
grey. Slightly soluble in Xylene. In concentrated sulfuric acid for yellow green, dilution after grey precipitation. Alkaline reduction leuco for red brown; Acid reduction leuco for yellow brown. This product dye cellulose fibre for grey. Mainly used for cotton fabric of white discharge printing.
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Standard
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Ironing Fastness
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Chlorine bleach
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Light Fastness
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Mercerized
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Oxygen bleach
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Soaping
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Fading
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Stain
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ISO
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3
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4
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6-7
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5
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4-5
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